refactor(plat/soc-lx2160): move errata to common directory

Will add more Erratas, some errata can be used for multiple
platforms, so move errata to be common code which can
be share between different platforms.

Signed-off-by: Jiafei Pan <Jiafei.Pan@nxp.com>
Change-Id: Ib149b3eac365bdb593331e9f38f0b89d92c9c0d1
diff --git a/plat/nxp/soc-lx2160a/soc.mk b/plat/nxp/soc-lx2160a/soc.mk
index 8ab1430..35da225 100644
--- a/plat/nxp/soc-lx2160a/soc.mk
+++ b/plat/nxp/soc-lx2160a/soc.mk
@@ -138,7 +138,7 @@
 include ${PLAT_DRIVERS_PATH}/drivers.mk
 
  # Adding SoC specific files
-include ${PLAT_SOC_PATH}/erratas_soc.mk
+include ${PLAT_COMMON_PATH}/soc_errata/errata.mk
 
 PLAT_INCLUDES		+=	${NV_STORAGE_INCLUDES}\
 				${WARM_RST_INCLUDES}